Arctic Air Pure Chill AC The fan speed can be adjusted, just like previous models. You can adjust the level of comfort to suit your needs. There's not a single sound. The fan on this device is not intrusive and won't distract from the user's work. A small, lightweight cooling box Pure Chill AC's handle makes it easy to carry around. It weighs less that two pounds empty. The louvers can be adjusted to direct cold air exactly where you desire. Buyers who are not satisfied with the product have 30 days to return it for a full reimbursement.